Geeting sim practice in shows the RIGHT attitude. You want the job to the point that you are attempting to ensure your performance is at its best. This is exactly the sort of attitude that they are looking for. Liars however are not.
Another thing the assessors are after are basic handling and an ability to recognise and self debrief (facilitate) in order to improve your performance. CRM is an area that far too few candidates give enough consideration to. You may be able to stick and rudder like Chuck Yaeger, but if the assessor thinks you are arrogant, or under confident, or just someone that he wouldn't like to share a cockpit with then you are in trouble. It is all about TRAINING RISK. Don't just assume because you flew 'within limits' that you should have passed.
PP